Bacula-users

Re: [Bacula-users] Running a fake incremental that can be considered as Full ( Database Dumps )

2012-04-18 09:43:43
Subject: Re: [Bacula-users] Running a fake incremental that can be considered as Full ( Database Dumps )
From: Hugo Letemplier <hugo.let.35 AT gmail DOT com>
To: Christian Manal <moenoel AT informatik.uni-bremen DOT de>
Date: Wed, 18 Apr 2012 15:41:02 +0200
2012/4/18 Hugo Letemplier <hugo.let.35 AT gmail DOT com>:
> 2012/4/16 Christian Manal <moenoel AT informatik.uni-bremen DOT de>:
>> On 16.04.2012 12:09, Hugo Letemplier wrote:
>>> Hello
>>>
>>> I use Bacula 5.0.3
>>>
>>> On few linux servers I have got BDD dumps that run every nights at a
>>> specified time.
>>> For synchronism reasons between databases theses backups are run via
>>> crontab and not directly from bacula.
>>>
>>> I need that bacula save theses databases dumps every morning
>>> - The filesystem is a read only LVM snapshot of a Virtual Machine (
>>> the backup is ran on the physical host and not on the virtual machine
>>> )
>>> - The snapshot is generated and mounted in a Run Before Job script
>>>
>>> Rotation schemas that deletes old dumps on the backed up server is not
>>> the same than on the configuration of bacula servers
>>>
>>> I need bacula to :
>>> - Run a full
>>> - Save only the dumps that haven't been already backed up .
>>>
>>> I must have a full:
>>> - If I do increments, I will need to keep the full and this is not
>>> what I want, if the full is deleted it will create a new one
>>> - Moreover a DB dump as no dependency in previous dumps
>>>
>>> I can't select only the dump of the day :
>>> - If bacula job is not working one day, the next one must backup the
>>> "missed db dump" that where not backed up during the failed job
>>>
>>> I can't use a predefined list of files in fileset because the estimate
>>> seems to be done before "Run Before Job" script that generates the
>>> snapshot so it doesn't validate the include path.
>>> File = "\\|bash -c \"find …… wont work because it's ran before my
>>> snapshot creation
>>>
>>> I think that it rests "options sections" from fileset but I didn't
>>> found anything that's fine
>>>
>>> In fact I want to run a full that saves only files since the last
>>> successful backup without using the incremental method because it will
>>> generate a full that will be deleted so I will have a useless FULL -
>>> INC dependence
>>>
>>> Have you got an idea ?
>>>
>>> Thanks
>>
>> Hi,
>>
>> if I understand you right, you want Bacula's virtual backup. You can run
>> your usual Full and Incremental jobs and then consolidate them into a
>> new Full backup. See
>>
>> http://bacula.org/5.2.x-manuals/en/main/main/New_Features_in_3_0_0.html#SECTION001370000000000000000
>>
>>
>> Regards,
>> Christian Manal
>>
>>
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>
> I dont think that Virtual Backup can help me.
> Moreover, I can't put a virtual Backup in the same pool than the
> previous full so it
>
> My first idea was to move/rename the files that have been backed up
> after each job so they wont match a regexp option in fileset
> => This is not possible because of the Read Only FS
>
> I think that i am gonna store a file list from the previous job on the 
> director
> Then I will read this list as an exclude list in the next job
> I think that it's fine because every dump file has a unique file name
> with a timestamp

My option regexp is working to select good files
Among this selection I Exclude all files that are in a  list with :
Exclude {
        File = "\\</var/lib/bacula/lastjob.list"
 }
This list as been generated at the end of the previous job and
contains a listing of the already saved files

I have run the file daemon with -d 200 -v -f
It says that the exclude file list as been imported but file Excluding
doesn't work

Have you got an idea ?

Thanks

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